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Structure of proteinase K from energy-filtered MicroED data using a 10 eV slit width
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 9DHO
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 67.72 α = 90 b = 67.72 β = 90 c = 106.9 γ = 90
Symmetry Space Group P 43 21 2
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B ELECTRON CRYSTALLOGRAPHY FREE R-VALUE 1.2 57.21 1.34 76038 3831 97.18 0.1664 0.1656 0.1998 0.1816 0.2128 11.13
Temperature Factor Modeling Anisotropic B[1][1] Anisotropic B[1][2] Anisotropic B[1][3] Anisotropic B[2][2] Anisotropic B[2][3] Anisotropic B[3][3]
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 12.8279 f_angle_d 1.0985 f_chiral_restr 0.0918 f_bond_d 0.0115 f_plane_restr 0.0112
Specimen Preparation Sample Aggregation State 3D ARRAY Vitrification Instrument LEICA PLUNGER Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method CRYSTALLOGRAPHY Number of Particles Reported Resolution (Å) 1.2 Resolution Method DIFFRACTION PATTERN/LAYERLINES Other Details Refinement Type Symmetry Type 3D CRYSTAL Space Group Name Length a 67.72 Length b 67.72 Length c 67.72 Angle Alpha 90 Angle Beta 90 Angle Gamma 90
Map-Model Fitting and Refinement Id 1 (9dho) Refinement Space RECIPROCAL Refinement Protocol OTHER Refinement Target Maximum likelihood Overall B Value 11.13 Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 0.002
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode DIFFRACTION Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION SerialEM 4.2.0 MODEL FITTING Coot 0.9.8.93 MOLECULAR REPLACEMENT PHASER 2.8.3 SYMMETRY DETERMINATION XDS BUILT=20230630 CRYSTALLOGRAPHY MERGING XSCALE BUILT=20230630 RECONSTRUCTION PHENIX 1.21.1 MODEL REFINEMENT PHENIX 1.21.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE